This is a note to let you know that I've just added the patch titled
rtnetlink: fix fdb notification flags
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtnetlink-fix-fdb-notification-flags.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Fri Apr 11 08:46:36 PDT 2014
From: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
Date: Wed, 19 Mar 2014 17:47:49 +0100
Subject: rtnetlink: fix fdb notification flags
From: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
[ Upstream commit 1c104a6bebf3c16b6248408b84f91d09ac8a26b6 ]
Commit 3ff661c38c84 ("net: rtnetlink notify events for FDB NTF_SELF adds and
deletes") reuses the function nlmsg_populate_fdb_fill() to notify fdb events.
But this function was used only for dump and thus was always setting the
flag NLM_F_MULTI, which is wrong in case of a single notification.
Libraries like libnl will wait forever for NLMSG_DONE.
CC: Thomas Graf <tgraf@xxxxxxx>
Signed-off-by: Nicolas Dichtel <nicolas.dichtel@xxxxxxxxx>
Acked-by: Thomas Graf <tgraf@xxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/core/rtnetlink.c | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -1973,12 +1973,13 @@ EXPORT_SYMBOL(rtmsg_ifinfo);
static int nlmsg_populate_fdb_fill(struct sk_buff *skb,
struct net_device *dev,
u8 *addr, u32 pid, u32 seq,
- int type, unsigned int flags)
+ int type, unsigned int flags,
+ int nlflags)
{
struct nlmsghdr *nlh;
struct ndmsg *ndm;
- nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ndm), NLM_F_MULTI);
+ nlh = nlmsg_put(skb, pid, seq, type, sizeof(*ndm), nlflags);
if (!nlh)
return -EMSGSIZE;
@@ -2016,7 +2017,7 @@ static void rtnl_fdb_notify(struct net_d
if (!skb)
goto errout;
- err = nlmsg_populate_fdb_fill(skb, dev, addr, 0, 0, type, NTF_SELF);
+ err = nlmsg_populate_fdb_fill(skb, dev, addr, 0, 0, type, NTF_SELF, 0);
if (err < 0) {
kfree_skb(skb);
goto errout;
@@ -2249,7 +2250,8 @@ static int nlmsg_populate_fdb(struct sk_
err = nlmsg_populate_fdb_fill(skb, dev, ha->addr,
portid, seq,
- RTM_NEWNEIGH, NTF_SELF);
+ RTM_NEWNEIGH, NTF_SELF,
+ NLM_F_MULTI);
if (err < 0)
return err;
skip:
Patches currently in stable-queue which might be from nicolas.dichtel@xxxxxxxxx are
queue-3.10/ipmr-fix-mfc-notification-flags.patch
queue-3.10/ip6mr-fix-mfc-notification-flags.patch
queue-3.10/kbuild-fix-make-headers_install-when-path-is-too-long.patch
queue-3.10/rtnetlink-fix-fdb-notification-flags.patch
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